Toxic Virus

 Virus Name:  Toxic 
 V Status:    Viron 
 Discovery:   March, 1993 
 Symptoms:    .COM file corruption; programs fail to function properly 
 Origin:      England 
 Eff Length:  171 Bytes Overwriting 
 Type Code:   ONCK - Overwriting Non-Resident .COM Infector 
 Detection Method:  F-Prot, Sweep, AVTK, ViruScan, IBMAV, NAV, NAVDX, 
                    VAlert, PCScan, ChAV, 
                    Sweep/N, Innoc, AVTK/N, NProt, IBMAV/N, NShld, NAV/N, 
 Removal Instructions:  Delete infected files 
 General Comments: 
       The Toxic virus was submitted in March, 1993, and is originally 
       from England.  Toxic is a non-resident, direct action overwriting 
       virus which infect .COM programs, including COMMAND.COM.  Infected 
       programs are permanently corrupted, and will not function properly. 
       When a program infected with the Toxic virus is executed, the Toxic 
       virus will infect one .COM program located in the current directory. 
       Infected programs will have the first 171 bytes of the host 
       program overwritten with the Toxic viral code.  The file's date and 
       time in the DOS disk directory listing will not be altered.  The 
       following text string can be found within the viral code in all 
       Toxic infected programs: 
               "*.COM [Toxic] By Toxic Crusader -=ARCV=-" 

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